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Hello,

I'm using CGAL's parameterization package.
There's a very nice page explaining how to use if with OFF files, but that's
not my case.
So, instead of loading a mesh from a file, I'm trying to pass my vertices and
faces to CGAL.

My data is formatted in a opengl typical pattern. I have a vertex array, one 
or
more arrays of triangular faces. These faces contain no more than indexes to
the vertex array.

What I'm doing is to pass the face like:
typedef CGAL::... Poly;
Poly poly;
for all my faces 
    get the face vertexes (pa, pb and pc)
    poly.make_triangle(Point(pa.x, pa.y, pa.z), Point(pb.x, pb.y, pb.z),
Point(pc.x, pc.y, pc.z));

Of course this repeats vertexes (points), and does not give any information
about the faces connectivity.
In the end, running the algorithm I get: "Parameterization requires a convex
border"
The mesh I'm using right now is just a couple of coplanar triangles, or if you
want, a tessellated unit square.

But I can't seem to be able to find how to pass the vertexes and the faces
separately.
Nor do I know how to specify the border.
Is there an example of this somewhere?
I am searching the examples and demos, but some help would be greatly
appreciated.

Thank you
Paulo